Oil-burning furnace.



J. J. HASKIN.

OIL BURNING FURNACE.

APPLICATION TILED APR. El, 913

Patented Jan. 13 191% I\\ I L011 ()RNEY mg the JOSEPH J'. HASKIN, 0FSTOCKTON, CALIFORNIA.

OIL-BURNING- FURNACE.

Specification of Letters Patent.

' Patented J an. 13,1914.

Application filed April 21, 1913. Serial No. 762,530.

To all whom it may concern Be it known that I, JosnrH J. HASKIN, 'acitizen of the United States, residing at Stockton, in the county of SanJoaquin and State of California, have invented new and usefulImprovements in Oil-Burning Furnaces, of which the following is aspecification.

My invention relates to improvements in furnaces which are especiallydesigned for the burning of oil.

It consists in a novel construction of the furnace floor, the arch atthe rear, and air draft openings, and in details of construction whichwill be more fully explained by reference to the accompanying drawings,in which Figure 1 is a side elevation and .vertical section of partsofthe furnace. Fig. 2 is an end view and partial vertical section. Fig.3 is a view of the arch at the rear of the furnace.

The object of my invention is to provide a more eflicient and permanentconstruction of brick lined furnaces, when used espec ally in connectionwith locomotive or similar furnaces which' are subjected to jars andother strains which are liable to loosen the bricks and cause them tofall, and which the present construction is designed to overcome, and togreatly extend the life and efficiency of the furnace.

Furnaces have been made with flat floors and also with arches built inthe usual manner, but in such cases they soon become disintegrated. Thesand which is used in cleanflues works its way into the cracks andjoints of the furnace floor, and soon causes the floor to rise andinterfere with the proper discharge of the fuelblast. Where the archbetween the fire box and flue sheet is made in separate sections, thejar of the engine soon loosens these sections and they work out and thearch will drop. For the purposes of this description the flue sheet endwill be called the front and the opposite end the rear.

In my invention the closed bottom A of the firebox has its upper sideedges connected with the inner side walls of the water jacket below themud ring, as shown at 2,

Fig. 2; thence these walls converge downwardly and at the lower edgesthey extend inwardly at right angles, thus forming inclined offsets andsupports 2 forthe lining bricks which rest upon and cover the ledge thusformed, lying against the convergent sides and forming a continuation ofthe vertical. side walls 6 of the fire box. From the inner edges of theoffsets 2 the bottom forms a flat, segmental, inverted arch which islined with bricks 5, meeting and forming a continuation of the sidelinings; the arch and'the inc-lined sides insuring the retention of thelining in position and enabling the placing of this lining by unskilledlabor.

The arch 4 of the furnace is composed of a plurality of segments, eachof which forms a complete curve from side to side, and these segmentsare made with interlocking tongues and grooves on their meeting edges,as shown at 7. In the present case the grooves are made V-shaped and thetongues of the .same shape, following the curvature of the arch, andwhen the two are placed together they support each other and prevent anytendency to loosen or come out.

In order to make it possible to do this work with unskilled labor, thesides of the arch are offset, as shown at 8, and have the lower surfacesat the angles so made that they will rest flat upon the. lining brickswhich are laid up straight, as previously described. The arch is shownas divergent and having an upward pitch from its junction with the frontwall toward the interior of the furnace over which it overhangs. By thisconstruction the parts of the side, lining and arch are effectivelyrelated and the life of the furnace is very greatly increased.

The burner 9 may be of any suit-able or desired description, such, forinstance, as shown in my prior Patent No. 1,029,927, dated .June 18,1912. This burner opens into the fire-box below the mud ring 3. Heatedair is introduced into the rear part of the burner to commingle with anddischarge the oil therefrom into the furnace.

Above the burner, between it and the mud ring, is a wide draft openingformed by means of a plate 5 which extends across the whole width of theopening. This forms an air inlet which allows air to pass in above theburner. The hot air, as before stated, is supplied from below and isenough to insure the proper ignition of the oil, while the supply whichenters the fire box from chamber 10 serves to complete the combustionwithin the furnace as the gases pass to the rear and return beneath thearch 4.

Having thus described my invention, what I claim and desire to secureent is- 1. A furnace fire box having substantially vertical and linedside walls and a mud ring, a bottom composed of inclined sidesconverging from the mud ring at the bottom of the side walls and havinginwardly turned, ofiset supports at right angles, linings for saidinclined sides, and a fiat inverted arch intermediate of the offsets,and a lining of abutting bricks fitting said arch and forming acontinuation of the inclined side linings.

2. In a furnace fire with the water jacket, a bottom comprising sidemembers attached at their upper sides to the water jacket, and aninverted arch by Letters Patbox, in combination vbricks on theprojections and forming continuations of the last named bricks.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JOSEPH J. HASKIN.

Witnesses:

J OHN H. HERRING, W. W. HEALEY.

